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121.
The effect of the hydrogen fluoride chain on the aromaticity of C6H6 in the C6H6···(HF)1–4 complexes
The effect of the hydrogen fluoride chain ((HF)n) on the aromaticity and π character of C–C bonds of C6H6 in the C6H6···(HF)n (n = 1–4) complexes were investigated using density functional theory employing RM05 functional. It was found that the binding energy between C6H6 and different (HF)n chains showed a maximum at n = 3 (C6H6···(HF)3). Also, the π–hydrogen interaction (πHI) and the bifurcated fluorine interaction (BFI) increased and decreased the π character of the C–C bond of C6H6, respectively. In addition, the change of aromaticity of the C6H6 due to the interaction with the HF chains was also studied using three different aspects such as aromatic fluctuation index (FLU), average two centre index (ATI) and proton nuclear magnetic resonance (HNMR) spectrum. The most change in the aromaticity happens when the C6H6 interacts with (HF)3 chain. The variation of aromaticity with the binding energy and the summation of two-body terms were investigated and very good linear correlations were observed. 相似文献
122.
123.
Gholivand Khodayar Mohammadpanah Fahimeh Yaghoubi Rouhollah Rahimzadeh Dashtaki Maryam Pooyan Mahsa Rahmani Hamidreza Roshanian Zahra Sharifi Mahboobeh EbrahimiValmoozi Ali Asghar Roohzadeh Roohollah 《Molecular diversity》2022,26(3):1519-1530
Molecular Diversity - In an attempt to obtain the modified and novel insecticides with low human toxicity, a series of novel mono-, bis-, and tetraphosphonic acid derivatives were designed and... 相似文献
124.
Non-stoichiometric zirconium oxide nanocrystals with the formula of ZrO2.12 and diameters less than 10 nm were synthesized in the course of calcination of a dried solution of zirconium(IV) oxy nitrate in the presence of citric acid at 600 °C for 5 h. Crystallite size of product was increased to 20 nm when starch was used as emulsifier. Effect of the organic additive, which was equal of moles of the nitrate ions of the zirconium precursor, was investigated on phase formation, morphology and particle size of products. Samples were characterized by FT-IR, TG/DTA, SEM and TEM analysis. Phase structure of samples were also analysed by the powder X-ray diffraction. 相似文献
125.
Salmonella Enteritidis and Salmonella Typhimurium are the most widespread causes of salmonellosis and gastrointestinal diseases worldwide. Thus, their simple and sensitive detection is significantly important in biosafety and point-of-care diagnostics. In that regard, although present nucleic acid-based attempts are mainly focused on the detection methods encompassing all Salmonella enterica members in a single reaction, serotypes other than S. Enteritidis and S. Typhimurium are clinically and epidemiologically rare to humans. Therefore, regarding high ribosomal RNA (rRNA) copy numbers in a cell, isothermal nucleic acid sequence-based amplification (NASBA) technique was employed for simple, sensitive and simultaneous detection of the bacteria. However, due to high sequence homology among 16S rRNA genes and consequently, very few specific regions, we developed a novel NASBA method called “single specific primer-NASBA or SSP-NASBA” in which the specificity of the antisense primer is sufficient to perform a specific NASBA reaction. Accordingly, we designed highly specific NASBA antisense and degenerate sense primers for a segment of 16S rRNA variable region by universal sequence alignment to simultaneously detect S. Enteritidis and S. Typhimurium. Meanwhile, the approach was successfully evaluated for various Salmonella as well as closely related non-Salmonella serovars. Specific and simultaneous detection of both bacteria was achieved with the designed primer set in a single reaction environment with a detection limit of less than 10 CFUs mL−1. The developed NASBA assay should facilitate the overall process and provide a simple, fast, specific and sensitive approach for molecular diagnostics of pathogens under various circumstances, e.g. outbreaks. 相似文献
126.
Mohammad Anary-Abbasinejad Hamidreza Dehghanpour Farashah Hossein Anaraki-Ardakani Nasim Shams 《合成通讯》2013,43(13):1877-1884
A new and efficient one-pot synthesis of polysubstituted pyrrole derivatives by three-component reaction of dialkyl acetylenedicarboxylates, triphenylphosphine, 2-aminothiazole or 2-aminobenzothiazole in the presence of arylglyoxals is described. The reactions were performed in dichloromethane at room temperature and neutral conditions and afforded good yields of products. 相似文献
127.
Alikhani Alireza Fathollahzadeh Maryam Hajihosseini Hamidreza Fathipour Morteza 《Journal of the Iranian Chemical Society》2020,17(1):187-194
Journal of the Iranian Chemical Society - Increasing the interest in the silicon-based devices resulted in developing new methods and techniques to achieve advanced and more reliable designs and... 相似文献
128.
Ali Moghimiardekani Brenda G. Molina Hamidreza Enshaei Luis J. del Valle Maria M. Prez‐Madrigal Francesc Estrany Carlos Alemn 《Macromolecular bioscience》2020,20(7)
Simultaneous drug release and monitoring using a single polymeric platform represents a significant advance in the utilization of biomaterials for therapeutic use. Tracking drug release by real‐time electrochemical detection using the same platform is a simple way to guide the dosage of the drug, improve the desired therapeutic effect, and reduce the adverse side effects. The platform developed in this work takes advantage of the flexibility and loading capacity of hydrogels, the mechanical strength of microfibers, and the capacity of conducting polymers to detect the redox properties of drugs. The engineered platform is prepared by assembling two spin‐coated layers of poly‐γ‐glutamic acid hydrogel, loaded with poly(3,4‐ethylenedioxythiophene) (PEDOT) microparticles, and separated by a electrospun layer of poly‐ε‐caprolactone microfibers. Loaded PEDOT microparticles are used as reaction nuclei for the polymerization of poly(hydroxymethyl‐3,4‐ethylenedioxythiophene) (PHMeDOT), that semi‐interpenetrate the whole three layered system while forming a dense network of electrical conduction paths. After demonstrating its properties, the platform is loaded with levofloxacin and its release monitored externally by UV–vis spectroscopy and in situ by using the PHMeDOT network. In situ real‐time electrochemical monitoring of the drug release from the engineered platform holds great promise for the development of multi‐functional devices for advanced biomedical applications. 相似文献
129.
Mazloum-Ardakani Mohammad Sabaghian Fariba Naderi Hamidreza Ebadi Azra Mohammadian-Sarcheshmeh Hamideh 《Journal of Solid State Electrochemistry》2020,24(3):571-582
Journal of Solid State Electrochemistry - A graphene aerogel cross-linked by p-phenylenediamine (PPDA) composite with Sm2O3 nanoparticles (AP.Sm) was synthesized as a novel nanocomposite via a... 相似文献
130.
This review investigates the synthesis and electrochemical performance of the electrode of the electrochemical energy storage (EES) devices obtained from peels and scraps of the citrus fruits. The EES devices include batteries, supercapacitors, and hybrid systems that have considerable value and various applications. The electrode is considered as the most important part of all EES devices. Tremendous efforts have been done to enhance the electrochemical energy storage electrode (EESE). The citrus fruits abundance leads to a decrease in their price and makes possible to use them as ingredients to fabricate EESE. Also, the electrochemical analyses determined that citrus fruits have considerable potential to use as the EESE. Using citrus fruits peels and scraps as biomass substances to prepare EESE leads to the electrodes which have low cost, environmentally friendly and appropriate electrochemical applications. 相似文献